AN4365 Datasheet, PDF (32/35 Pages) STMicroelectronics – Using STM32F4 MCU power modes with best dynamic efficiency

STM32F4 low-power application case
AN4365
Sensor current consumption
Figure 19. Calculating sensor average current consumption
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Average Current (mA)~= (Run1_S*0,11 + Run2_S*0,02 + Sleep1*2,8 + Run3_S*0,04 + Sleep2*49 +
Run4_S*0,05 + StdBy*47,98)/100
Current consumption results
Table 3 shows some measures taken with a firmware compiled with the MDK-ARM V4.73
toolchain and device powered with 3 V. For more details about hardware requirements, refer
to Section 3.2.2.
Device
STM32F401xC
STM32F429xx
STM32F407xx
Table 3. Average measurement results
Consumption (mA)
Master
1.10
1.60
1.60
Sensor
1.75
2.00
2.05
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